Storage-battery plate.



' I No. 842,801.

I UNITED STATES WVILIIILIAMI MoR RIsonpF CHICAGO,,ILLINOIS, ASSIGNQfiBY Q N;

- MENTS; TO EXMOOR STORAGE BATTERY coinmy,;opcmgmg;

. NOIS, ,A CORPORATION or- ARIZONA TERRITORY sToR- eE-B TERY PLATE. 1

Specification of Letters Patent.

a resident of'Chicago, Cook county, Illinois,

have invented a certainv new and useful 'Im prove-merit in Storage-Battery Plates and Processes of Making Same,'- ofwhich the following is a specification; i 1

In the manufacture of lead storage-battery lates more or les trouble. has heretofore een experienced Withthe metal. 1 In molding the plate or grid the 'molten leadIwould not flow properly an'd'would cool in such manner as to leave-the plate or gridfull of pores 'or minute openings. This, of: course, resulted in an injurious attack of the electrolyte upon the plate or grid, the 'el 'ec t'rolyte entering the pores orminuteopenin'gs and causing an'injurious' and weakening-eff 20.

feet upon theplate or grid as a whole or minute openings. .So far,- however,- these attempts-es'uch, for example, as the use of metallic sodium or metallic-potassiumfhave failed to give satisfactory results: .For-in-'- stance, metallic" sodium' or metallic pctassium-when employed W ill im rove the flow of the metal and will result in t e production of a practicallynon-porousplate; or grid. Thetrouble with this expedient, however, -is obvious, for more or less of the sodium or. potassium is liable to remain in the'plate 01'' grid and then .be attacked and eaten out by the acid of,-the electrolyte, and in thiswaythe plate .01 grid isvery quickly rendered much moreporous' and ine'lhcient-than the plate's or grids which are made in the ordinary 'way and without any attempt whatever to render them non-porous. I I I Generally stated, the :object of my nvention is, therefore, the provision of a lead bat ,tery plate which is non-porous or practically non-porous and which is. capable of remaining so Whilem use,

I 'Aspecial object-of my invention is the;pro.

, vision of an improved process for making and. toprovide a process mv'olvlng' the-use lead plates or grids for storage batteries I non-porous, and 1 there the plate or gridlnonporous or. I am aware that somelatt'empts havebeen i made to overcome this difficultyjand to make the mo ten I metal flow properly and cool without leaving the plate or grid with-pores porous plate or grid;

say, tin contaming'phospho'rus. @Tin of. this 1 of Iphosphorus'or res ass-tine ,or: as

equivalent substance for making the molten: lead 'fiow properly 'while theplat'e. or'jsbemg molded, and for thus insuring a plate 55' or grid which is non-pcrous "or practically y of 1a "character: w more I effectually-resist. the injurious andweakeflng attack of the electrolyte. I Other objects and a'dvantageslwillxlierein- ,60'

1 after-more fully appear.

In practicing my mvention onef I is as'follows: First takeian alloy lead and antimony say one hundred pout! of lead":

to about twelve pounds of aaitimony and 55 then While the said: alloy-is in a-Inplten'fcom' dition -a dd two ounces, more-i01- .less, 'o;f"phosl pl10IT lS. The resultbe a wearhen"- ywill n w properlyiwhile the plate Q1-'-. .g'rid is' andwhich'will c0911. ind leavf '76' racticallyfjj nonporous"and of'a high-degree'o efficiency: and serviceability. The hosphoi-asmast be being m'olde added in small portions first after'thc moltenm tal: s i r n 7 h r F the fair. atigl tf J7 'cover'of thepot must beipult 911'.- I This can] be re' eated-until the desired '"amjourit j of phos orus has b'een* 'ad' ded to the molten meta i I, I Another way is as follows; First-take an 8? alloy of lead, antimony, and tin s'ay.0ne-

hundred-pounds of lead, twelvepoundsmff antimony, and one and a half ponndsof tin' t and then 'while the 'alloyis a=Inolter 1 co1i-} dition, and in the'r'n'anner s'tated,, -add"abbut I 75] two ounces of phosphorus. fTh :is als'o izwill a result in the pi cduction of a practicallynone I Still a no her way, and' .onewhich gives good results 'is as follows: First take one hundred; pounds of lead-to about twelve' pounds ofantirnony', in the manner. stated,"

. and thenadd about one .and.a -half pounds,

m re or. .le'ss, of phosphor tin,'. that is 5' character is-commonly'knownas phosphor I tin and is sold inthemsfiket a'ssuch.v An

alloy-of thesethliee metalslin substantially I the proportion given maybe used in making. the plates or grids; for lead storage batteries; As in'the' other-cases", .a late or grid made of such an alloy is practical ynon-poro'us'. Lead plates or grids results in the pgodugjgiongof av IQ plate orgrid' which is praetioally fion-porous andyyhieh remain no il-pq ujsflthrbughoutils's period of use in a: storage battery.

What I claim as my ihventi'onise 1. storage-battery supper]; or gridcon- I :sisting of fa phosphorous -alloy 00m lead, antimony and tin.

.sisting of a,ph0sphorous :illoy coutaining lead 15 and-antimony,- I

2. A storage-battery sup i t g-of analloy cntainm ea and phosphor-tin. v

3.- A- storage-batttery support-0r gp d con-- .S1gned by Inefat Chicago, Cook .eiinty, Illinois, this 9th day of J anuary, 1905.

' WILLIAM MORRISON. Witnesses:

i CLARENCE M. THORNE,

ALBERT: SAUsER. 

